Milk and cream cooler and aerator



March 13, 1928. 1,662,390

0. o. NEWHOUSE MILK AND CREAM COOLER AND AERATOR Filed June 10. 1926 2 Sheets-Sheet l N Dscar' I1 NewhuusE March 13, 1928. 1,662,390

0. o. NEWHOUSE MILK AND CREAM COOLER AND AERATOR Filed June 10. 1926 2 Sheets-Sheet 2 DEII" I]. NEwhnu-se 61m: wag

Patented Mar. 13, 1928.

UNITED STATES OSCAR o. nnwrrousn, or BRANDON, MINNESOTA;

MILK AND CREAM COOLER AND AER-ATOR.

' Application filed June 10, 1926. Serial No. 115,066.

This invention relates to improvements in means for cooling and aerating mllk and cream and other liquids.

Immediately after milking it is desirable practical, and hence enhances the value thereof.

A further object of this invention is the provision of improved apparatus for the cooling of milk embodyingimproved means for regulating the flow of milk thru the cooling medium.

A further object of this invention is the provision of a liquid cooler, preferably adapted to be used in connection with the cooling of milk or cream, embodying improved milk flow retarding means for properly regulating the flow and thickness of the stream of milk or cream as it passes over a cooling surface which has been cooled by the cooling medium.

A further object of this invention is the provision of improved apparatus for aerating and cooling milk or cream including means to permit the thorough aeration of the milk or cream during a quickened flow of the milk or cream, while the same is being thoroughly cooled.

Other objects and advantages of this invention will be apparent during the course of the following detailed description.

In the accompanying drawings, forming a part of this specification, and wherein similar reference characters designate corresponding parts throughout the several views,

Figure 1 is a longitudinal sectional view taken thru the improved milk or cream cooler and aerator.

Figure 2 is a plan view of the apparatus illustrated in Figure 1.

Figures 3 and 4 are transverse sectional views taken substantially on their respective lines in Figure 2 of the drawings.

Figure 5 is a fragmentary sectional view taken substantially on the line 5-5 of Figure 3.

Figure 6 is an enlarged fragmentary sectlonal view taken along a cooling tube, showmg a novel type of flow retarding member used therein.

Figure 7 is a sectional view taken. substantially on the line 7 7 of Figure 6.

Figure 8 is a fragmentary longitudinal. sectional view taken through a milk 01-- cream cooling tube, showing a modified form of flowretarding member used therein.

Figure 9 is a sectional view taken sub-1 stantially on the line 9 9 of Figure 8.

In the drawings, wherein for the purpose of illustration are shown preferred and modified embodiments of this invention, the

letter A may generally designate the improved apparatus, which may consist of a casing construction B adapted to receive a coohng medium, having a novel mllk' or cream supporting and aerating trough C i associated in a novel manner within the cas ing B. Novel cooling tubes D are supported in a novel relation with respectto the casing B and trough C, wherein the milk or cream may flow from the trough G to any suitable location E, such as a pail or receptacle for receiving the milk or cream after being treated. Novel retarders F and G maybe used in selective manner in the. tubes D for retarding the rate of flow of the milk or cream through the tubes D, and to increase the cooling efficiency of said tubes. A regulating milk or cream container H may be usedfor dispensing the milk or cream into the troughC, and the housing B may be formed to associate with a cooling medium supply nozzle K.

The casing B preferably consists of a flat bottom wall 10, adapted to be horizontally positioned; the same being of any desired width and being elongated, at one end there of having a vertical end wall 11, and at the opposite end thereof having an upwardly sloping end wall l2 at an angle of approximately 45 Longitudinally extending side walls 14 and 15 are provided as a part of the casing B, the heightof the said walls being less than the height of the end wall 11, and

adjacent the end wall 11 the said walls are" upwardly extended at 17 to the same height as the wall 11 to which they are connected.

The milk or cream aerating trough C is of a novel construction, including a sloping bottom wall 20, which at one end thereof is provided with a vertical upstanding wall 21, which at the side edges thereof is connected with the side. edges of the wall extensions 17, at the opposite edges of the latter .t'rom the end wall 11, to provide an inlet opening 25 to the compartment 26 oi the casino" ll thru vhich water is led 'lrom the supply nozzle K. Side walls 30 and ill are provided as a part of the trough construction C, which at their upper edges are preteri lily integrall v connected at 33 to the upper edges of the side walls 1 t and t l'CFlJQtZilYClY ot' the elongated receptacle ll: it being: understood that the walls: 30 and ill extend downwa 'dlv in spaced parallel relation alone the walls l-l; and 15, to hold the hottom sloping rail of the trough J in a iroperlv spaced relation above the hottom l0 of the elongated casing ll, to provide an elongated chamber 26 along which the cooling medium llows from the inlet openinp to the opposite end of the receptacle ill for discharge thru an outlet opening 35 a the top edge fit; of the sloping end wall 12. The spaces hetween the side walls: ol the aerating trough C and the side walls of the casing are relatively shallow, hut the communicate with the chamber aliove the bottom ill and hetween the side walls i l and 1:) in order that: the cooling inedii n ma} pass upwardly into the, spaces 37 to predetermined distances. to cool the milk flowing along the trough compartment ill. in a manner which is readily apparent. The bottom 20 ot": the. aerating" trough C it is to he noted also terms a top wall for the ci'ioling medium compartment of the housing l and this. wall 20 slopes downwardly from the end wall "21 towards the outlet for the cooling" medium of the tank ll. The wall 520 atthe lower end thereof is dropped in sul'istantiallv vertical relation at and the remaining portion it; ot the hottom wall of the trough (i from the dropped por tion l5 towards the end wall lT ot' the trough is prct'erahlv horizontally pm-Litiimcd in a plane slig htl helow the sloping hottom Qt) to provide a sort oll depressed trap in the lower portion ol the trough at. the end thereof adjacent the outlet openinc 37, to which all the milk or cream will ultimately travel along the trough (l. or pas llow in its sage therefrom into the coolinc tuhes lL as will he suh etpiently mentioned. "he sloping end wall t? of the trough C is inclined to the horizcntal and vertical. and the same converges with respect to the plane of the wall 12, so that the outlet opening 31 g aduallv restricts t'rom the cooling medium conipartlnent 26 to the uppermost edge tit) surrounding the outlet opening- 35, as: can readily be seen from Figure l of the drawings. The spaces 337 open into the water space hetween the sloping walls 12 and -17 at the end of the housing 13, so that there will he no tendency for air to be. trapped in the said spaces 37 since all air will he forced upwardly into the spaces 3? and will then travel along the connectinc edges 33 of the trough and side walls to he rltimai lv dis charged thru the inlet or outlet; opening ot' the housing; lh in a relation which is pertect ly oil-lions. suitahle dash hoard (31. may l e pla ce at the cooling liipiid discharge end ot the improved cooler and aerator. as illustrated in l iggure to prerent the splashing of the water as it is discharged thru the openio; .3.3.

Th cooling: tuh s l.) are of an]: approved length. and number. the s'ilnc n'el erahly heinc. il' hollow cylindrical t'ornr. having pasz ag cwrr therctln'ousjh. ol' nnil'orin di anieter n end to end ol the said tuhcs.

lrii

-ll1e tuhcs l) at an end of each are connected he ere-1m o mill; receptacle l). (ll' course h tithe l) ma he provided in any aporcd lltllldJll' and they are preli erahly arranged in parallel spaced relation .ith their upper ends ct:nununicating with the trap end to of the trough c mipartnient i and from thence each of the sanze slopes downwardl to llltoutlet ahove inentiitn'ied.

At the inlet end of the housing ll, a supporting hail prct'erzhl v provii'led. pirotallv connected at Tl. and TL: th hail heing ot' U slmped formation and heilrz adapted to enmin'e ov r the nomel li. which may he a water laurel or pump nozzle: this hail lit-ill! tor the purpose oi supporting th inlet end ot the improved oler or aerator: thc opposite end heing; t dapted to rest upon a support. ."il. although it i to he malcrsl od thrt the hail TU may he done away with it desired and the improved device support d otherwise than a: ahove mentioned.

The reccptmfle ll is 'irel'crahl v an ordinacicontainer for initially receiving the warm mill: or cream. and it is prorided wiih a regiulatin valve TI thru whi h the milli or cream flows into the upper end. ol the trough adjacent the inlet end oi the houiiuc l1 for the cooling tre: (m rit. so that the warm milk or cream will tlow into the tl'nltij'li compartment l and then downwardlr along th sloping wall 20 into the trap end of lllc trough compartment upon the wall it). and 'lil'OlTl thence the milk [lows through the coolin; tubes D and properly coolcdi as is obvious. Duringr its path oitravel along the trough compartment sttt, which is pretc ahl opened entirely at the top thereof. the vario rnillt or cream is aerated to free the same of [till ti l lilo

objectionable flavors, and during this course of flow the milk or cream 18 also cooleddue to the fact that the cooling medium surrounds the bottom side and end walls of the trough C and cools the flowing milk or cream. The housing construction B and trough C are preferably of some highly conductive sheet metal formation, integrally connected or soldered together in any ap-,

proved manner, and thus the cooling medium most eliiciently cools the body of milk or cream as it flows along the trough C.

Referring to the flow retarders F and G the same are placed in the cooling tubes D for the purpose of retarding the flow of 5 of any approved material, and the same is tapered from the end 80 where it is of greatest" diameter to the end 81 where it is of least diameter, the taper being gradual. At spaced points along the retarder F peripht era-l series of spaced projections 83 are provided, which are segmental in form, having outer convex surfaces adapted to engage with a point contact with the inner periphery of the passageway of a tube D in order to i insure that the periphery of the main body of the retarder does not itself assume such contact in the tube D. This insures that there will be an annular chamber between the outer periphery of the main body of the retarder and the inner periphery of the tube D, along which the milk or cream will be caused to flow to receive the maximum cooling benefit, and to suitably retard the flow of the liquid according to the viscosity there of. Of course, with the tapered retardor F the farther that the same is inserted in the tube D, from the outlet end of said tube 1), the more restricted will be the flow of the milk or cream or other liquid along the tube D, as is perfectly apparent, and it is intended that the retarders F and G shall be positioning of said With the retarder G; it isment of the fluid which passes thru the tubes D. The inner stream dividing ends 93' of,

the retarders 'F and G are preferably pointed.

From the foregoing description of this invention it is apparent that a novel milk, cream or other liquid cooler and aerator has been provided, which is of a practical, economical, and efficient construction best adapted to serve the purposes above outlined.

The retarders -F and G are not absolutely necessary where the fluid is suiiieiently viscid to present a retarded flow. Milk flows more freely than cream through the cooling tubes,

and hence it willbe desirable under certain circumstances to use the retarders when cool ing milk, in order to retard the rapid flow of the milk through the cooling tubes to about the same degree of flow as cream will have in thecooling tubes without the retarders. Under any circumstances of use the retarders may or may not be used.

The cooling tubes may be of other shape than round, and may presentan irregular cross section with an elongated opening which is of only sufiicient area to produce a retarded flow. Valves ofthe gate type may also be used at the outlet ends of the cooling tubes to retard the flow of liquid therethrough, as well as various other expedients.

Various changes in the shape, size, and arrangement of parts may be made to the forms of invention herein shown and described, without departing from the spirit of the invention or the scope of the claims,

I claim: V

1 In a cooler of the class described the combination of an elongated receptacle havinga passageway therealonglfor receiving a flowing cooling medium, a trough supported in the passagewayof said casing being open at the top thereof,meansfor feeding milk or other liquid into one end of the trough for flow ,therealong, and means for receiving the milk or other liquid at the opposite end of the trough and causing it to flow through ill) the cooling medium in said passageway 2. In a cooler of the class described the combination of an elongated receptacle hav: 1

ing a passageway. therealong for receiving a flowing cooling medium, a trough supported in the passageway of said casing being open at the top thereof, means for feeding milk or other liquid into one end of the trough for flow therealong, means for receiving the milk or other liquid at the opposite end of the trough and causing it to flow through the cooling medium in said passageway counter to the flow of said li uid alon said trou h. and means for regulating and retarding flow of the said liquid along said last mentioned means.

3; Ina cooler of the class described the combination of an elongated receptacle including bottom, side and end walls, a trough including bottom, side and end walls, and means for supporting the trough in the receptacle so that its bottom, side and end walls are in respective spaced relation with the bottom. side and end walls of the receptacle, the end walls of the trough and receptacle at both ends being spaced to provide inlet and outlet openings at the top of the said end walls and at the opposite ends of the receptacle for receiving a cooling medium which is adapted to flow between the bottom walls of the receptacle and trough and between the side walls of said receptacle and trough.

4. In a cooler of the class described the combination of an elongated receptacle including bottom. side and end walls, a trough including bottom. side and end walls, means for supporting the trough in the rt' ceptacle so that its bottom. side and end walls are in respective spaced relation with the bottom, side and end walls of the receptacle, the end walls of the trough and receptacle at both ends being spaced to provide inlet and outlet openings at the top ot the receptacle and at the opposite ends of the receptacle for receiving a cooling medium which is adapted to flow between the bottom walls of the receptacle and trough and between the side walls of said receptacle and trough, the end walls of said receptacle and trough being inclined in a. convergent relation towards the outlet opening.

5. In a cooler of the class described the combination of a receptacle having a compartment therein, a. trough having a compartment; therein and including a bottom wall, said bottom wall at one end being formed to provide a depressed trap, means supporting the trough in the compartment of the receptacle to provide a passageway in the compartment of the receptacle between the trough and receptacle for flow of a cooling medium, said passageway atone end being open to provide an inlet opening and the opposite. end being open to provide an outlet opening adjacent the trap of said trough. and tubular means connected in the trap ol said trough and passing with a downward slope to the horizontal along the passageway l'ietween the trough and receptacle towards the inlet opening end oi said receptacle.

(3. in a. cooler of the class described the combination of a casing portion having a compartment therein. a trough having a sloping bottom wall, means supporting the trough in the receptacle compartment to provide a passageway below the bottom wall thereof. said bottom wall at the lower end thereof being formed to provide a trap, means for feeding milk or other liquid into the upper end of the trough for flow towards said trap, means for draining the liquid from said trap, said means including a conduit connected with the trap and being inclined to the horizontal below the bottom wall of the trough and extending towards the end T. In a cooler the combination ol :1 receptaclc including a bottom wall. side walls,

a rcliu'ivelg. high inlet end wall and an inclined outlet end wall, a trough less in length than the length of said receptacle including a sloping bottom wall, side walls, an up standing inlet end wall and an inclined outlet end wall. means connecting the upper marginal portions ol the side walls of the rcr-e 'itaclc and trough to place the side walls of the receptacle and trough in spaced relalion with the bottom at the trough supported aliorc the bottom wall of the casing in a spaced relation therewith to provide a cooling medium llow passageway, the inlet end walls at the trough and receptacle being spaced to provide an inlet opening for receiving a cooling medium, and the inclined outlet end walls of the trough and receptacle being disposed in a convergent relation towards an outlet opening at the upper edges thcreot, means at the inlet opening to support that end of the trough and receptacle. and means at the lower end of the sloping trough wall tor withdrawing milk or other liquid which is adapted to llow along said trough.

S. In a cooler the combination of a. receptacle including a bottom wall, side walls, a relatively high inlet end wall and an inclined outlet end wall, a trough less in length than the length of said receptacle including a sloping bottom wall, side walls, an upstanding inlet end wall and. an inclined outlet cud wall. mcans connecting the upper marginal portions of the side walls of the receptacle and trough to place the side *alls oi: the receptacle and trough in spaced relation with the bottom of the trough supported above the bottom wall ot the. receptacle in a. spaced relation therewith to provide a cooling medium flow passageway. the inlet end walls f the trough and rcccptmrle being spaced to provide an inlet opening for receiving a cooling medium, and the inclined outlet end walls ot the trough and receptacle being disposed in a convergent relation towards an outlet opening at the upper edges thereof, means at the inlet opening to support; that end of the trough and receptacle, means at the lower end of the sloping trough wall tor withdrawing milk or other liquid which is adapted to flow along said trough including a series of tubes connected with the CID lower end of said trough and being inclined to the horizontal in the passageway between the bottom walls of the trough and receptacle extending towards the inlet end wall of the casing and passing therethrough, said tubes having outlet openings therethrough for receiving milk or other medium to cause the same to flow in a path counter to the path which the same takes along the sloping bottom wall of said trough.

9. In a cooler the combination of a receptacle including a bottom wall, side walls, a relatively high inlet end wall and an inclined outlet end wall, a trough less in length than the length of said receptacle including a sloping, bottom wall, side walls, an upstanding inlet end wall and an inclined outlet end wall, means connecting the upper marginal portions of the side walls or the receptacle and trough to place the side walls of the receptacle and trough in spaced relation with the bottom of the trough supported above the, bottom wall of the receptacle in a spaced relation therewith to provide a cooling medium flow passageway, the inlet end walls of the trough and receptacle being spaced to provide an inlet opening for receiving a cooling medium, the inclined outlet end walls of the trough and receptacle being disposed in a convergent relation towards an outlet opening at the upper edges thereof, means at the inlet opening to support that end of the trough and receptacle, means at the lower end of the sloping trough wall for withdrawing milk or other liquid which is adapted to flow along said trough, a series of tubes connected with the lower end of said trough and being inclined to the horizontal in the passageway between the bottomwalls of the trough and receptacle and extending towards the inlet end wall of the receptacle and passing therethrough, said tubes having outlet openings therethrough for receiving milk or other medium to cause the sameto flow in a path counterto the path which the same takes along the sloping bottom wall of said trough, and retarding means in the passageways of said tubes for regulating the flow of milk or other liquid therethrough.

10. In a cooler of the class described the combination of a receptacle having a compartment therein, for receiving a flowing cooling medium, a trough supported in the compartment of said receptacle being open at the top thereof, said trough having a passageway therealong with a sloping bottom for gravity flow of milk or other liquid along said passageway from one end of the trough to the opposite end thereof, the trough being so disposed within the compartment oi the receptacle that the recep= tacle has a. cooling medium inlet opening at one end and a cooling medium discharge opening at the opposite end, and conduit means connected with the trough passageway at the end thereof towards which-the milk flows and extending in a downwardly sloping relation through the compartment of the receptacle below the trough for submergence by the cooling liquid, said conduit means being adapted to carry the milk or the like from the trough in a thinly flowing stream countercurrent to the passage of cooling medium along said receptacle compartment, and the conduit means having an out- "let exteriorly of the trough and receptacle at the top thereof, said trough having a passageway therealong with a sloping bottom for gravity flow of milk or other liquid along said passageway'from one end of the trough to the opposite end thereof, the trough being so disposed within the compartment of the receptacle that the receptacle has a cooling medium inlet opening at one end and a cooling medium discharge opening at the opposite end, conduit means connected with the trough passageway at the end thereof towards which the milk flows and extending in a downwardly sloping res lation through the compartment of the receptacle below the trough for submergencc by the cooling liquid, said conduit means being adapted to carry the milk or the like from the trough in a thinly flowing stream countercurrent to the passage of cooling medium along said receptacle compartment, the conduit means having an outlet exteriorlyof the troughand receptacle compartment, and means cooperating with said conduit means to retard the How of milk therethrough.

OSCAR o. Nnwno'usn 

